<template>
  <div class="container">
    <div class="app-container">
      <el-button
        class="btn-add"
        size="mini"
        type="primary"
        @click="addPermission(0,1)"
      >
        添加权限
      </el-button>
      <el-table default-expand-all :data="list" row-key="id">
        <el-table-column prop="name" label="名称" />
        <el-table-column prop="code" label="标识" />
        <el-table-column prop="description" label="描述" />
        <el-table-column label="操作">
          <template v-slot="{ row }">
            <el-button
              v-if="row.type === 1"
              size="mini"
              type="text"
              @click="addPermission(row.id,2)"
            >添加</el-button>
            <el-button size="mini" type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button size="mini" type="text" @click="deletePermission(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 新增弹层 -->
      <!-- 放置一个弹层 用来编辑新增节点 -->
      <el-dialog
        :title="`${showText}`"
        :visible.sync="showDialog"
        :close-on-click-modal="false"
        @close="btnCancel"
      >
        <!-- 表单 -->
        <el-form
          ref="perForm"
          :model="formData"
          :rules="rules"
          label-width="120px"
        >
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" style="width: 90%" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" style="width: 90%" />
          </el-form-item>
          <el-form-item label="权限描述">
            <el-input v-model="formData.description" style="width: 90%" />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch
              v-model="formData.enVisible"
              active-value="1"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button
              size="small"
              type="primary"
              @click="btnOK"
            >确定</el-button>
            <el-button size="small" @click="btnCancel">取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import {
  addPermission,
  delPermission,
  getPermissionDetail,
  getPermissionList,
  updatePermission
} from '@/api/permission'
import { dataConvertion } from '@/utils'

export default {
  name: 'Permission',
  data() {
    return {
      list: [],
      showDialog: false,
      formData: {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 开启
      },
      rules: {
        name: [
          { required: true, message: '权限名称不能为空', trigger: 'blur' }
        ],
        code: [
          { required: true, message: '权限标识不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  computed: {
    showText() {
      return this.formData.id ? '编辑权限' : '新增权限'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    // 获取权限列表
    async getPermissionList() {
      this.list = dataConvertion(await getPermissionList(), 0)
    },
    btnCancel() {
      this.formData = {
        name: '', // 名称
        code: '', // 标识
        description: '', // 描述
        type: '', // 类型 该类型 不需要显示 因为点击添加的时候已经知道类型了
        pid: '', // 因为做的是树 需要知道添加到哪个节点下了
        enVisible: '0' // 默认关闭
      }
      this.$refs.perForm.resetFields()
      this.showDialog = false
    },
    btnOK() {
      this.$refs.perForm.validate(async(isOK) => {
        if (isOK) {
          if (!this.formData.id) {
            // 调用接口
            await addPermission(this.formData)
            this.$message.success('新增权限成功')
          } else {
            await updatePermission(this.formData)
            this.$message.success('编辑权限成功')
          }
          // 重新拉取数据
          this.getPermissionList()
          this.btnCancel()
        }
      })
    },
    // 删除权限
    async deletePermission(id) {
      await delPermission(id)
      this.$message.success('删除权限成功')
      this.getPermissionList()
    },
    // 编辑权限
    async editPermission(id) {
      this.showDialog = true
      this.formData = await getPermissionDetail(id)
    },
    // 添加权限
    // 一级添加的type为1， 二级添加的type为2
    addPermission(pid, type) {
      this.formData.pid = pid
      this.formData.type = type
      this.showDialog = true
    }
  }
}
</script>
<style lang="scss" scoped>
.btn-add {
  margin: 10px;
}
</style>
